Ultrasonic piezoceramic transducer modeling with VHDL-AMS IEEE 1076.1

Guelaz, Rachid; Kourtiche, Djilali; Nadi, Mustapha; Hervé, Y.

doi:10.1109/icsens.2004.1426106

Cited by 5 publications

(3 citation statements)

References 4 publications

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“…Guelaz et al [6] present an ultrasonic piezoceramic transducer model integrated in a global measurement cell, a model dedicated to biological ultrasound characterization. Characterization of different mediums, like water and ethanol, by a comparison method is based on the ultrasonic parameter estimation.…”

Section: Introductionmentioning

confidence: 99%

High Frequency Longitudinal Damped Vibrations of a Cylindrical Ultrasonic Transducer

Predoi

Petre

Vasile

et al. 2014

Shock and Vibration

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Ultrasonic piezoelectric transducers used in classical nondestructive testing are producing in general longitudinal vibrations in the MHz range. A simple mechanical model of these transducers would be very useful for wave propagation numerical simulations, avoiding the existing complicated models in which the real components of the transducer are modeled by finite elements. The classical model for longitudinal vibrations is not adequate because the generated longitudinal wave is not dispersive, the velocity being the same at any frequency. We have adopted the Rayleigh-Bishop model, which avoids these limitations, even if it is not converging to the first but to the second exact longitudinal mode in an elastic rod, as obtained from the complicated Pochhammer-Chree equations. Since real transducers have significant vibrations damping, we have introduced a damping term in the Rayleigh-Bishop model, increasing the imaginary part and keeping almost identical real part of the wavenumber. Common transducers produce amplitude modulated signals, completely attenuated after several periods. This can be modeled by two close frequencies, producing a “beat” phenomenon, superposed on the high damping. For this reason, we introduce a two-rod Rayleigh-Bishop model with damping. Agreement with measured normal velocity on the transducer free surface is encouraging for continuation of the research.

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Section: Introductionmentioning

confidence: 99%

High Frequency Longitudinal Damped Vibrations of a Cylindrical Ultrasonic Transducer

Predoi

Petre

Vasile

et al. 2014

Shock and Vibration

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“…It is anticipated that numerical modelling could help with this task. Various methods can be used for modelling of ultrasonic transducers for the last few decades, as reviewed in [2][3][4][5][6][7][8][9].Numerical simulation algorithms used for ultrasonic wave propagation include many different approaches such as: Finite Differences (FD) [10], Finite Elements (FE) [11,13] or the Local Interaction Simulation Approach (LISA) [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Local Interaction Simulation Approach vs. Finite Element Modelling for Fault Detection in Medical Ultrasonic Transducer

Hashemiyan

Paćko

Kochanski

et al. 2013

KEM

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Ultrasonic transducers are extensively used in medical applications. Any deterioration in their performance can lead to poor quality images. The Local Interaction Simulation Approach (LISA) and Finite Elements are used to model medical ultrasonic transducers. The entire analysis attempts to find out whether the LISA-based methodology could be used for transducer modelling in fault detection applications based on in-air reverberation patterns.

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“…To implement ultrasonic transducer modeling using VHDL-AMS language [12], we used a piezoelectric transducer model developed by Redwood [13], which gives an analogy between physical equations of piezoelectric material and implementation with basic electric elements into an electric diagram. Comparisons are made with PSPICE result simulation and in vivo water measurement.…”

Section: Introductionmentioning

confidence: 99%

Ultrasonic Piezoceramic Transducer Modeling With VHDL-AMS: Application to Ultrasound Nonlinear Parameter Simulations

Guelaz¹,

Kourtiche²,

Nadi³

2006

IEEE Sensors J.

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This paper presents an ultrasonic transducer modeling with very high-speed integrated circuit (VHSIC) hardware description language-analog and mixed signal (VHDL-AMS) IEEE 1076.1 integrated in a global measurement cell modeling dedicated to biological tissue ultrasound characterization. Usual modeling of ultrasonic transducers is based on electrical analogy and is not simulated in the global measurement environment. The ultrasonic transducer modeling proposed is simulated with a nonlinear acoustic load and electronic excitation. The nonlinear B/A parameter is used to characterize a medium with a comparative method. The measurement cell is composed of two piezoelectric ceramic transducers, which are implemented with Redwood's electric scheme. The analyzed medium is placed between the transducers and modeled to take into account the nonlinear propagation with the B/A parameter. The usual transmission line model has been modified to take into account the nonlinear propagation for a one-dimensional (1-D) wave. Simulations of the transducer pulse response and electrical impedance show a VHDL-AMS model that is in good agreement with measurementand compared to the usual personal computer simulation program with integrated circuit emphasis results simulations. Results obtained by simulation of mediums (blood, milk, liver, and human fat tissue) showed good agreement between modeling and experimental measurement, and a maximum error of about 12.5% for B/A measurement-simulation.Index Terms-Ceramic, nonlinear modeling, piezoelectric, ultrasonic, very high-speed integrated circuits (VHSIC) hardware description language-analog and mixed signal (VHDL-AMS).

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Ultrasonic piezoceramic transducer modeling with VHDL-AMS IEEE 1076.1

Cited by 5 publications

References 4 publications

High Frequency Longitudinal Damped Vibrations of a Cylindrical Ultrasonic Transducer

High Frequency Longitudinal Damped Vibrations of a Cylindrical Ultrasonic Transducer

Local Interaction Simulation Approach vs. Finite Element Modelling for Fault Detection in Medical Ultrasonic Transducer

Ultrasonic Piezoceramic Transducer Modeling With VHDL-AMS: Application to Ultrasound Nonlinear Parameter Simulations

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